Q: What are the prime factors of the number 38,687,232?

 A: 2, 3, 89, 283

Why are those the prime factors of the number 38,687,232?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 38,687,232

38,687,232
Factor Arrows
219,343,616
Factor Arrows
29,671,808
Factor Arrows
24,835,904
Factor Arrows
22,417,952
Factor Arrows
21,208,976
Factor Arrows
2604,488
Factor Arrows
2302,244
Factor Arrows
2151,122
Factor Arrows
275,561
Factor Arrows
325,187
Factor Arrows
89283

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 89, 283

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 89 x 283 = 38,687,232

This can also be written as 29 x 31 x 891 x 2831 = 38,687,232

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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